Interleukin 5 and interleukin 4 produced by Peyer's patch T cells selectively enhance immunoglobulin A expression.
Murray PD, McKenzie DT, Swain SL, Kagnoff MF. Interleukin 5 and interleukin 4 produced by Peyer's patch T cells selectively enhance immunoglobulin A expression. J Immunol. 1987 Oct 15; 139(8):2669-74.